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#!/bin/sh
# Common autopkgtest script for testing a dkms source package.
# Author: Martin Pitt <martin.pitt@ubuntu.com>
# Copyright: (C) 2014 Canonical Ltd.
set -eu

run_pkg() {
    pkg="$1"
    tmpfile=$(mktemp)

    echo "I: removing binary package $pkg, to get clean state"
    export DEBIAN_FRONTEND=noninteractive
    apt-get purge -yq $pkg </dev/null 2>&1 >/dev/null || true

    echo "I: Installing binary package $pkg"
    export DEBIAN_FRONTEND=noninteractive
    RC=0
    apt-get install -yq $pkg </dev/null 2>&1 >"$tmpfile" || RC=$?
    cat "$tmpfile"

    if ! dkms_conf=$(dpkg -L $pkg | grep 'dkms.conf$'); then
        echo "I: Package $pkg has no dkms.conf, skipping"
        return
    fi

    # Do not continue if dkms build was skipped due to BUILD_EXCLUSIVE
    # directive
    excluded=0
    grep -q "BUILD_EXCLUSIVE" "$tmpfile" && excluded=1
    rm "$tmpfile"
    if [ "$excluded" -eq 1 ]; then
	    echo "I: Package $pkg excluded by BUILD_EXCLUSIVE directive, skipping"
	    return
    fi

    # collect build logs as artifacts
    if [ -d /var/lib/dkms ]; then
        (cd /var/lib/dkms; find -name "make.log" -print0 | xargs -0 tar c) > "$ADT_ARTIFACTS/$pkg-make-logs.tar"
    fi

    if [ "$RC" -ne 0 ]; then
        echo "E: Package $pkg failed to install" >&2
        exit 1
    fi

    echo "I: Testing binary package $pkg"

    dkms_pkg=$(bash -c ". $dkms_conf; echo \$PACKAGE_NAME" 2>/dev/null)
    dkms_ver=$(bash -c ". $dkms_conf; echo \$PACKAGE_VERSION" 2>/dev/null)

    echo "I: Testing if $dkms_pkg modules are correctly installed"
    dkmsstatus="$(dkms status $dkms_pkg)"
    if [ -z "$dkmsstatus" ]; then
        echo "E: dkms status output is empty!" >&2
        exit 1
    fi
    echo "$dkmsstatus"

    if grep -q "Good news! Module version $dkms_ver" /var/log/apt/term.log; then
        tail -n 50 /var/log/apt/term.log
        if ! echo "$dkmsstatus" | grep -q "installed"; then
            echo "E: not installed" >&2
            exit 1
        fi
        exit 0
    fi

    if ! echo "$dkmsstatus" | grep -q "installed$"; then
        echo "E: not installed" >&2
        exit 1
    fi

    # skip modprobing for now; this fails too often (needs particular
    # hardware/firmware/etc)
    # for mod in $(awk -F '"' '/^BUILT_MODULE_NAME/ {print $2}' $dkms_conf); do
    #     echo "I: modprobe $mod"
    #     if ! modprobe $mod; then
    #         echo "E: Failed to modprobe module $mod" >&2
    #         exit 1
    #     else
    #         echo "I: $modname loaded"
    #     fi
    # done
}

# Try and remove dkms to spot packages which miss a dkms dependency
dpkg --remove dkms || true

for pkg in $(grep-dctrl -FDepends -e '(^| )dkms' -o -FPackage -e '\-dkms' debian/control -sPackage -n); do
    # package might be arch: restriction or udeb etc.
    if ! apt-cache show $pkg >/dev/null 2>&1; then
        echo "I: Skipping unavailable package $pkg"
        continue
    fi
    run_pkg $pkg
done